The spray drying process is older than is conventionally thought, and the basic idea of a spray drying apparatus is to produce a highly dispersed powder from a fluid feed by evaporating the solvent. This is accomplished by mixing the heated gas in a vessel (drying chamber) with an atomized (spray) fluid of the same high surface quality as the desired size, allowing the solvent to evaporate uniformly and rapidly by direct contact. Spray drying equipment is used in a wide variety of applications to produce a free flowing powder.
This dehydration method has become a successful method in the following fields: 1. Pharmaceuticals 2, bone and dental fillings 3, beverages 4, spices, pigments and plant extracts. 5. Milk and egg products 6. Plastics, polymers and resins 7. Soaps and detergents 8. Textiles, etc. Advantages <br/ > Almost all other drying methods (including the use of ovens, freeze dryers or rotary evaporators) produce a large amount of material (such as grinding and filtration) that requires further processing to produce particles of irregular size and shape. Spray drying equipment, on the other hand, provides very flexible control of powder particle properties such as density, size, flow characteristics and moisture content.
Electronic Component Resource 